<template>
  <div id="BigPie">
    <div ref="pie1"  class="pieBox"></div>
  </div>
</template>

<script>
export default {
  props: {
    valueData: Array || Object,
    iswrap: false,
  },
  components: {},
  data() {
    return {
      colorList: [
        '#f3ac62',
        '#f89448',
        '#f18b6a',
        '#f06c44',
        '#fd9254',
        '#f3ac62',
        '#f89448',
        '#f18b6a',
        '#f06c44',
        '#fd9254',
      ],
      wrap: '',
    }
  },
  computed: {},
  watch: {
    valueData: {
      handler(n, o) {
        this.drawpie()
      },
      deep: true,
    },
  },
  created() {
    if (this.iswrap == true) {
      this.wrap = '\n'
    } else {
      this.wrap = ''
    }
  },
  mounted() {
    this.drawpie()
  },

  methods: {
    drawpie() {
      let that = this
      // 基于准备好的dom，初始化echarts实例
      let myChart = that.$echarts.init(that.$refs.pie1)
      let option = {
        color: that.colorList,
        tooltip: {
          trigger: 'item',
          formatter: '{b} :{d}%',
          confine: true, //将此限制打开后tooltip将不再溢出
          extraCssText: 'z-index: 9', //设置消息提示框的层级
        },
        // grid: {
        //   top: "15%", // 组件离容器上侧的距离,百分比字符串或整型数字
        //   left: "35%", // 组件离容器左侧的距离,百分比字符串或整型数字
        //   right: "35%",
        //   bottom: "3%",
        //   containLabel: true, //grid 区域是否包含坐标轴的刻度标签，
        // },
        series: [
          {
            name: '访问来源',
            type: 'pie',
            radius: ['42%', '62%'],
            center: ['50%', '50%'],
            minAngle: 18,
            labelLine: {
              // 设置指示线的长度
              normal: {
                length: 12,
                length2: 8,
              },
            },
            label: {
              // position: "inside",
              formatter: ' {b|{b}：}' + that.wrap + '{d|{d}% }',
              // formatter: " {b|{b}：}{d|{d}% }",
              borderColor: '#aaa',
              avoidLabelOverlap: true,
              rich: {
                b: {
                  fontSize: 12,
                  lineHeight: 33,
                  color: '#555',
                },
                d: {
                  align: 'center',
                  color: '#555',
                },
              },
            },
            data: that.valueData,
          },
        ],
      }
      // 使用刚指定的配置项和数据显示图表。
      myChart.setOption(option)
      window.addEventListener('resize', function () {
        myChart.resize()
      })
    },
  },
}
</script>
<style lang='less' scoped>
#BigPie {
  width: 100%;
  height: 100%;
  .pieBox {
    width: 100%;
    height: 100%;
  }
}
</style>